Articles tagged with Museums
Researchers tracked individual Kirtland's Warblers and found that their gut bacteria differed in The Bahamas and Michigan. This suggests that birds' microbiomes adapt to changing environments during migration.
Researchers compared 156 species' skulls to understand diet's impact on skull shape. Despite similar diets, distantly related animals retain unique ancestral shapes, with some developing unique adaptations.
Scientists discovered a fossil bird with elaborate tail feathers, showing how natural and sexual selection influenced bird evolution. The discovery sheds light on the balance between traits that aid survival and those used for display.
Researchers analyzed 1.4 million field observations and 73,000 museum records to find a strong correlation between species abundance in nature and their presence in museum collections. This method enables scientists to study species decline and estimate past abundances, providing insights into conservation efforts.
A team of researchers analyzed over 31 million iNaturalist records to find that highly active users primarily post observations of plants and insects, while large animals are underdocumented. The study provides insights into urban biodiversity and the distribution of biological data.
Researchers used flight efficiency estimates from museum specimens to predict bird dispersal distances, revealing that species with elongated wings can disperse farther. This study has applications in biodiversity conservation, as reduced flight capabilities may threaten bird populations.
Researchers analyzed skunk DNA to determine the correct number of species, revealing seven species, including the previously recognized four. The revised family tree highlights the distinct evolutionary lineages of each species, making conservation efforts more effective.
Researchers analyzed oral bacteria of wild brown bears to track history of human antibiotic use and find significant decrease in antibiotic resistance after national policies were implemented. The study highlights the effectiveness of governmental policies in mitigating a major health threat on a national level.
Three new fossil mammal species, including Beornus honeyi, Miniconus jeanninae, and Conacodon hettingeri, have been discovered at an ancient riverbed site in southern Wyoming. The species lived after a mass extinction event and were ancestors of today's hoofed animals.
A new study finds that urbanization is causing many mammal species to grow bigger, contrary to Bergmann's Rule. The study analyzed over 140,000 measurements of body length and mass from North American mammals collected over 80 years.
Researchers used isotopic data from a mammoth's tusk to recreate its lifetime journey, covering vast distances across Alaska. The study provides the first evidence that woolly mammoths traveled extensively.
A study reveals that birds' eye size reflects their environment, diet, and behavior, providing insights into conservation efforts. The research suggests that larger eyes are associated with closer proximity to the equator and foraging habits near the forest floor.
A new beetle species, Pulchritudo attenboroughi, was identified in a fossil from the Green River Formation in Colorado, with its unique beauty and preserved patterns making it an exceptional find. The beetle was named after Sir David Attenborough, who inspired its discoverers.
Paleobotanists describe two new genera of ancient conifers based on beautifully preserved fossil seed cones from the Upper Cretaceous of Hokkaido, Japan. The discovery sheds light on the diversity and decline of cunninghamioid conifers during the Cretaceous period.
A 48-year record of Australian collecting trips has been made publicly available, providing accurate details on specimen collection dates and locations. The data is now accessible via the Zenodo open-data repository in Darwin Core format.
A new study has confirmed the Xerces blue butterfly's extinction due to human activities, sparking concerns about the impact on ecosystems. The DNA analysis reveals a unique genetic sequence distinct from other butterflies, emphasizing the importance of protecting remaining species.
The discovery of Caribeomys merzeraudi, a Caribbean rodent with North American roots, challenges the long-held idea that land-dwelling mammals colonized the islands from South America. The tiny rodent's unique tooth characteristics suggest it may have evolved in isolation over millions of years.
A researcher from the University of Illinois rebutted a paper claiming to have found mathematical proof that Holocaust victim numbers were fabricated. The original paper used flawed statistical analysis, ignoring dataset inconsistencies and biases.
Researchers found that early British Antarctic expeditions fed their dogs inadequate amounts of Spratt's dog cakes, leading to desperation and hunger among the canine team members. The study suggests that the dogs required significantly more energy-rich food to sustain their high-energy activities.
A University of Michigan-led research team found that birds are migrating earlier, but their bodies have been getting smaller and wings longer. The study used museum specimens from bird collisions in Chicago to analyze long-term trends in bird migration timing.
Gabriel Isaacman-VanWertz will measure concentrations of reactive organic gases in a forested field site and simulate rain events to quantify the removal of pollutants from the atmosphere. His research may provide fundamental insights into the chemistry of the atmosphere and improve air quality predictions.
A Canadian researcher has reclassified a rare bee thought to be one of the rarest in the world, discovering it is an unusual specimen of a widespread species. The discovery was made using DNA barcoding and morphological analysis, confirming that the bee is part of the California digger-cuckoo bee genus.
Researchers successfully germinated and grew Podaxis specimens collected in the 1770s, showing they can remain viable for centuries. The study found that these fungi can adapt to extreme environments and survive under relaxed selection pressure.
A new study identifies a separate species of tree hyrax, Dendrohyrax interfluvialis, which inhabits the wet and dry forests between the Volta and Niger rivers in West Africa. The species is characterized by distinct barks, anatomical differences, and genetic distinctness from other hyrax lineages.
A new species of Oculudentavis has been discovered in a 99-million-year-old amber fossil, revealing physical characteristics that distinguish it from birds and confirm its status as a lizard. The discovery sheds light on the early evolution of squamates during the Cretaceous Period.
New equations based on tooth width provide a more accurate estimate of megalodon's size, measuring up to 65 feet long. The revised estimate is the result of a high school lesson gone wrong and collaboration between researchers and teachers.
Australotitan, the southern titan, is Australia's largest dinosaur, reaching heights of 5-6.5 meters and lengths of 25-30 meters. The fossilised skeleton was discovered in Eromanga, southwest Queensland, and its scientific description marks a 17-year-long collaboration between Queensland Museum and Eromanga Natural History Museum.
Researchers analyzed CT scans of nearly every living amphibian genus to reveal that frogs have lost teeth over 20 times during their evolution. The study found a correlation between the absence of teeth in frogs and a specialized diet on small insects.
A new study suggests a return-on-investment approach to focus taxonomic research on species in need of conservation. Researchers used this method to identify 24 Australian lizard and snake species that require better classification, highlighting the critical importance of accurate taxonomy for effective conservation.
A new study on the 25 million-year-old fossil skull of Aetiocetus weltoni reveals that it had both teeth and baleen in adulthood. The discovery provides evidence of a major shift in feeding behavior from raptorial carnivory to filter-feeding, and sheds light on the evolution of modern baleen whales.
The Cleveland Museum of Natural History has developed a new planetarium software plug-in that enables users to teach beyond the stars by exploring biodiversity trends and patterns. The tool allows educators to leverage 1.6 billion specimen records, creating customized programs on biodiversity and conservation.
Archivist Sarah Buchanan assesses and preserves artifacts to better understand their origin and cultural heritage. Her research reveals the importance of provenance in authenticating collections and shedding light on cultural history.
A new study using high-resolution CT scanning reveals key relationships between cichlid morphology and behavior, enabling scientists to infer life history and characteristics of rare or extinct fishes. This technology will aid conservation efforts by characterizing the remaining fish species in Lake Malawi.
Museums have successfully adapted to the pandemic by offering online exhibitions, featuring behind-the-scenes videos, podcasts, and virtual tours. However, researchers warn that there is a need for staff to develop digital skills to manage this new era of engagement.
Menefeeceratops sealeyi, a newly described horned dinosaur, lived in New Mexico 82 million years ago and is one of the earliest known ceratopsid species. The discovery provides important insights into the evolution of ceratopsid dinosaurs and their evolutionary relationships.
Researchers have identified five additional specimens of a 240-million-year-old ichthyosaur, named Besanosaurus leptorhynchus, providing new information on its anatomy, diet, and exceptionally large adult size. The species is the earliest large-sized marine diapsid with a long and narrow snout.
Most human origins stories are incompatible with the fossils found today, according to a new review that argues for the importance of fossil apes in understanding human evolution. The study examines the major discoveries in hominin origins since Darwin's time and finds that relying on living apes alone is insufficient.
A new study from Yale University reveals that the shape of a dinosaur's inner ear can provide reliable signs about its behavior, including flying ability, movement, and parenting. The research found clusters of species with similar inner ear traits corresponding to their behaviors.
A new, non-destructive archaeogenetic sampling method has been developed to extract genetic material from archaeological human remains without causing significant damage. This allows for the preservation of artefacts and enables further analysis through stable isotope and radiocarbon studies.
Researchers discovered a new species of saber-toothed cat, Machairodus lahayishupup, that lived in North America between 5-9 million years ago. The giant cat weighed an average of around 600 pounds and could have taken down prey weighing up to 6,000 pounds.
Researchers analyzed museum specimens to find that fish have been ingesting microplastics since the 1950s, with concentrations increasing over time. The study highlights the importance of natural history collections in museums and serves as a wake-up call for addressing plastic pollution.
Researchers have developed a QR code-based digitization workflow to streamline specimen collection, reduce errors, and make data more accessible. The workflow uses unique object identifiers, citizen science platforms, and QR codes to automate data entry and analysis, allowing for the creation of large-scale phylogenetic studies.
A new genus and species of hadrosaur, Yamatosaurus izanagii, has been identified in Japan, revealing insights into the herbivores' migration from Asia to North America. The discovery also highlights an evolutionary step as dinosaurs transitioned from bipedalism to quadrupedalism.
A new study resolves the horned crocodile's evolutionary relationships, placing it on a separate branch of the crocodile family tree. The research suggests that modern crocodiles likely originated in Africa, contradicting previous scientific thinking.
A team of scientists from CNRS has proven that Leonardo da Vinci did not sculpt the Flora wax bust, which was conserved at the Bode Museum in Berlin. The radiocarbon dating revealed that the sculpture was made in the 19th century, nearly 300 years after da Vinci's death.
A new study verifies the age and origin of a 1.9 million-year-old Homo erectus skull fragment from East Turkana in Kenya. The researchers also found two new, nearly 2-million-year-old hominin specimens at the site, likely the earliest pieces of H. erectus skeleton yet discovered.
A new study reveals that gray wolves adapted their diet over thousands of years, shifting from a reliance on horses during the Pleistocene to caribou and moose today. The researchers found that horses accounted for half of the ancient wolf diet, while modern diets consist mainly of caribou and moose.
Two new species of 120-million-year-old, burrowing mammals are discovered in northeastern China with distinct characteristics. They share specialized digging features and an elongated vertebral column, shedding light on the evolution of fossorial life.
Researchers found two new species, Fossiomanus sinensis and Jueconodon cheni, with characteristics of scratch diggers in the Jehol Biota ecosystem. The animals independently evolved traits to support their digging lifestyle, including shorter limbs and strong forelimbs.
New study reveals that whales and hippos developed unique skin traits for aquatic life, contradicting current dogma. Genetic analysis shows that these traits evolved independently in both groups, with cetaceans losing more skin genes than hippos.
Researchers have identified two new species of critically endangered screech owls in the Amazon and Atlantic forests. The study used tape recordings to draw out the birds' calls, revealing variations indicative of different species.
A new study has introduced 13 previously undiscovered species of sparkly moths from Hawaii, highlighting the island's unique biodiversity. The moths are threatened due to shrinking habitats, disease, and invasive species, with some species facing extinction.
Researchers discover juvenile snailfish exhibiting bright green and red biofluorescence in Arctic habitats, a rare occurrence. The finding provides insight into the function of fluorescence in marine species, shedding light on its potential role in communication and mating behaviors.
Researchers have discovered four new lichen species in Kenyan cloud forests, showcasing the region's unique biodiversity. The isolated ecosystem is home to previously unknown Micarea genus species, highlighting the importance of preserving native forests.
A genetic analysis of a fossil toe bone from the Haitian cave-rail has uncovered unexpected links between Caribbean bird life and the Old World. The study found that the species' closest relatives are actually flufftails, flying birds native to sub-Saharan Africa, Madagascar, and New Guinea, and adzebills, large, extinct, flightless bi...
Researchers aim to enhance youths' experiences with maker programs, focusing on failure support and adaptive professional development for informal educators.
A new study reveals that modern lamprey larvae are a relatively recent innovation, contrary to the long-held hypothesis. The fossil discoveries indicate that ancient lampreys resembled modern adult lampreys, with large eyes and toothed sucker mouths.
New fossil discoveries of over 300 million-year-old lampreys have upended the long-held theory on vertebrate origin, showing that ancient lamprey hatchlings were unlike their modern larvae counterparts. The findings suggest that extinct armored fishes might represent better candidates for the root of the vertebrate family tree.
Researchers found a rib fragment of the Mount Holly mammoth, dating back 12,800 years, which overlaps with the arrival of early humans in the region. The discovery raises the possibility that humans may have seen or interacted with these animals.
A new study found that five strains of green algae consume live bacteria when hungry, but not dead ones. This behavior has large implications for the environmental study of green algae and may have been underestimated due to traditional methods used in research.